ʻIke ʻike loea Hydroxypropyl Methylcellulose
Eia ka papaʻaina e hōʻike ana i kekahi ʻikepili ʻenehana maʻamau no ka hydroxypropyl methylcellulose (HPMC):
| Waiwai | Waiwai |
|---|---|
| ʻO ke kinona | ʻO ka cellulose derivative |
| ʻAno molekala | (C6H7O2(OH)xm(OCH3)yn(OCH2CH3)z)n |
| Laulā kaumaha molekala | 10,000 – 1,500,000 g/mol |
| Ka nana aku | ʻO ka pauka keʻokeʻo keʻokeʻo |
| Ka hoʻoheheʻe | Hiki ke hoʻoheheʻe ʻia i ka wai, ʻaʻole hiki ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe organik |
| Laulā viscosity | 5 – 100,000 mPa·s (e pili ana i ka pae viscosity a me ka noʻonoʻo ʻana) |
| Palena wela gelation | 50 – 90°C (e pili ana i ka pae viscosity a me ka hoʻopaʻa ʻana) |
| pae pH | 4.0 – 8.0 (1% hoʻonā) |
| ʻAno wai | ≤ 5.0% |
| ʻAno lehu | ≤ 1.5% |
| Nā metala kaumaha | ≤ 20 ppm |
| Nā palena microbial | ≤ 1,000 cfu/g no ka heluna microbial aerobic; ≤ 100 cfu/g no ka huina pau o na hu a me na poni |
| Nā mea hoʻoheheʻe koena | Kūlike me USP 467 |
| Ka hāʻawi ʻana i ka nui o nā ʻāpana | Aia ka 90% o nā ʻāpana i loko o 80 – 250 µm |
| Ola ola | 2-3 mau makahiki ke mālama ʻia ma kahi maloʻo a maloʻo |
He mea nui e hoʻomaopopo he ʻokoʻa paha kēia ʻikepili ʻenehana ma muli o ka papa kikoʻī a me ka mea hana o HPMC. Manaʻo mau ʻia e nīnau i nā kikoʻī huahana i hāʻawi ʻia e ka mea hana no ka huahana kikoʻī āu e hoʻohana nei.
Ka manawa hoʻouna: Mar-04-2023